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Knowing What We See

- Chris B. Martin, Celia Fidalgo, and Morgan D. Barense

The first step toward knowing what you see occurs when visual information is sent from the eyes to the brain. The primary visual cortex, which is located at the back of the brain, is one of the first brain regions to receive information from the eyes. This region processes only the most basic information about the visual world, such as lines, edges, color, and direction of motion. The primary visual cortex then sends this basic information forward through the brain along the ventral visual pathway (ventral is from Latin venter, meaning "belly"). The information processing performed by the ventral visual pathway supports our conscious awareness of what we are seeing, which allows us to talk about what we see.
The ventral visual pathway works to combine simple visual information, like lines, edges, and color, to create entire objects. Information is sent forward from one brain region to another in a series of steps. First, lines and edges are passed from the primary visual cortex to another brain region that combines lines and edges to create a simple shape, like a triangle or an oval.

License information: CC BY 4.0
MPAA: G
Go to source: https://kids.frontiersin.org/article/10.3389/frym.2017.00015

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